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RothiaRANK: GenusTAXONOMY: Bacteria -> Terrabacteria group -> Actinobacteria -> Actinobacteria -> Micrococcales -> Micrococcaceae -> Rothia OVERVIEW: Agenus of bacteria in the family Micrococcaceae. Babies with a higher risk of asthma presented lower levels of four bacteria in their feces samples in comparison with the infants who did not show any symptoms. Those bacteria were identified as Faecalibacterium, Lachnospira, Veillonella and Rothia - known all together as FLVR. [http://www.gutmicrobiotawatch.org/en/2015/11/25/four-types-of-gut-bacteria-may-protect-children-against-asthma-risk/] Identified as constituent of skin microbiome. [PMC2746716] Coccoid, spherical, dipththeroid, filamentous mycelial cells, usually up to 1.0 µm in diameter. Irregular swellings and clubbed ends up to 5.0 µm in diameter may be present. Growth may be exclusively coccoid, diphtheroid, or filamentous or a mixture of these forms. Gram-stain-positive. Nonmotile. Endospores are absent. Non acid-fast. Mature colonies (4–7 d) 2–6 mm in diameter, usually off-white/cream, smooth or rough, usually soft in texture but may be dry and crumbly or mucoid. Optimum temperature for growth is 30–37°C. Usually catalase-positive. Chemo-organotrophic. Ferments carbohydrates. Major product of glucose fermentation is lactic acid. Does not produce propionic acid. The cell-wall peptidoglycan type is A3α, and contains alanine, glutamic acid, and lysine, but not diaminopimelic acid (DAP). Contains MK-7 as the major isoprenoid quinone. Cell-wall sugars include fructose, galactose, and glucose, but not 6-deoxy-talose or arabinose. DNA G+C content (mol%): 54–60 (Tm) Type species: Rothia dentocariosa This genus contains microbial species that can reside in the human gastrointestinal tract. [PMC 4262072]
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